Description
Internally found bugs present in Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154 and Thunderbird 154.
CVSS 9.8EPSS 0.332%Risk 1.01
View source- Published
- 2026-08-18 13:17:40
- Affected versions
- <154
- Type
- Web application
- Last modified
- 2026-08-24 09:16:46
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H